Excavator Engine Parts

5365943 / 5255204 / 3954949 Crankshaft Pulley for Cummins ISB ISDe QSB

Q: What numbers are documented for 5365943?

Primary Cummins Part Number: 5365943. Published Direct-Replacement Reference: 5255204. Published Direct-Replacement Reference: 3954949. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 5365943 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

5365943 / 5255204 / 3954949 Crankshaft Pulley for Cummins ISB ISDe QSB, OEM/reference 5365943, Crankshaft Belt Pulley, product view 1

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OEM / reference5365943

SpecificationCrankshaft Belt Pulley

Catalog ID51040693

Crankshaft belt pulley identified by Cummins 5365943, 5255204 and 3954949. Cummins and exact-number records support ISBe/ISB, ISDe/ISD and QSB applications, including published QSB4.5 and ISB4.5 use. The legacy 6D107 label was unsupported and has been removed. Confirm the groove count, diameter, damper construction and engine CPL before ordering.

Product Type: Crankshaft Belt Pulley
Product Brand: EexcavaStart
Construction: Multi-groove steel pulley
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Cummins Part Number	Crankshaft pulley	5365943
Published Direct-Replacement Reference	Cummins pulley family	5255204
Published Direct-Replacement Reference	Cummins pulley family	3954949

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

5365943

Direct interchange

5255204
3954949

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

Crankshaft Belt Pulley

Category: Excavator Engine Parts
Catalog ID: 51040693
Photo views: 4

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

3 model references

Engine families: Cummins ISB / ISBe / ISD / ISDe / QSB
Published displacement families: 4.5 L / 6.7 L
Fitment limitation: Confirm engine CPL, groove count, diameter and damper style

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 5365943

Which machines use 5365943?

Recorded compatible model references include Engine families: Cummins ISB / ISBe / ISD / ISDe / QSB, Published displacement families: 4.5 L / 6.7 L, Fitment limitation: Confirm engine CPL, groove count, diameter and damper style. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 5365943?

Documented direct interchanges: 5255204, 3954949.

How do I confirm 5365943 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

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